Invention Grant
- Patent Title: DC-DC converter with improved line transient rejection
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Application No.: US17198911Application Date: 2021-03-11
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Publication No.: US11444535B2Publication Date: 2022-09-13
- Inventor: Alexander Mednik
- Applicant: Microchip Technology Incorporated
- Applicant Address: US AZ Chandler
- Assignee: Microchip Technology Incorporated
- Current Assignee: Microchip Technology Incorporated
- Current Assignee Address: US AZ Chandler
- Agency: Burr & Forman LLP
- Agent Ryan M. Corbett
- Main IPC: H02M3/158
- IPC: H02M3/158 ; H02M1/088 ; H02M1/00

Abstract:
An emulated peak current mode control (EPCMC) synchronous buck converter device is provided, and may include a converter having an inductor, a high-side switch, and a low-side switch, and an EPCM controller. The controller may include a PWM latch to alternately turn on and off the high-side and low-side switches, a current sense element to output a current sense voltage based on the inductor current, and a feedforward circuit to generate a feedforward voltage. The current sense element outputs a first current sense voltage while the low-side switch is turned on, and outputs a second current sense voltage while the low-side switch is turned off. The feedforward voltage is generated based on a voltage differential that represents a difference between the first current sense voltage and the second current sense voltage, and the PWM latch alternately turns on and off the high-side and low-side switches based on the feedforward voltage.
Public/Granted literature
- US20220200453A1 DC-DC Converter With Improved Line Transient Rejection Public/Granted day:2022-06-23
Information query
IPC分类: